Parallel and Perpendicular Slopes from ordered pairs, graphs

Front

What is the slope of a horizontal line?

Back

0

Front

What is the slope of a vertical line?

Back

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Front

What is the relationship between the slopes of two parallel lines?

Back

They have the same slope.

Front

What is the relationship between the slopes of two perpendicular lines?

Back

The product of their slopes is -1.

Front

If a line has a slope of 1, what is the slope of a line perpendicular to it?

Back

-1

Front

If a line has a slope of 2/5, what is the slope of a line parallel to it?

Back

2/5

Front

If a line has a slope of -3, what is the slope of a line perpendicular to it?

Back

1/3

Front

What is the slope of a line that rises 3 units for every 4 units it runs?

Back

3/4

Front

How do you find the slope from two ordered pairs (x1, y1) and (x2, y2)?

Back

Slope (m) = (y2 - y1) / (x2 - x1)

Front

What is the slope of a line that runs from (1, 2) to (3, 6)?

Back

2